SEVERE WEATHER ADVISORY: With over 40 inches of accumulated rain in our open spaces, and thousands of acres to manage, be advised that not all trails have been inventoried and may be unsafe. Please check your local trail conditions following the link. *NOTE: Local road conditions are not updated on the Open Space website. Check road conditions with Santa Clara County, San Mateo County, Caltrans, or your local city.
This information is updated as needed when trails are opened or closed, or when there is scheduled trail maintenance.
Trail conditions can vary depending on the time of year, the impact of rain and storms, construction and maintenance and other occurrences. Please be aware that trail closures may change from day to day without notice, based on current and predicted weather conditions. During winter storm season high waters can make creek crossings hazardous, so plan your outing accordingly.
Bicyclists and equestrians: To prevent trail damage, please avoid riding dirt trails while it is raining or right after larger storms where there is lots of standing/running water on the trails.
Trail closures are strictly enforced.